• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Perovskia 'Blue Spire'

perovskia 'Blue Spire'

AGM plants

AGM plants have been through a rigorous trial and assessment programme. They are:

  • Excellent for ordinary use in appropriate conditions
  • Available to buy
  • Of good constitution
  • Essentially stable in form & colour
  • Reasonably resistant to pests & diseases
  • Other common names perovskia 'Blue Spire'

  • Synonyms Perovskia atriplicifolia 'Blue Spire'
    Perovskia hybrida 'Blue Spire'

  • Family Lamiaceae

  • Genus Perovskia are deciduous subshrubs with aromatic, deeply divided, grey-green leaves and large, open panicles of small tubular blue flowers from late summer

  • Details 'Blue Spire' is an erect small deciduous sub-shrub to 1.2m, with white stems bearing deeply-divided, aromatic greyish leaves. Small violet-blue flowers in large plumy panicles in late summer and autumn

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Leaf

  • Hardiness

    Hardiness ratings

    All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

    • H1a - Under glass all year (>15C)
    • H1b - Can be grown outside in the summer (10 - 15)
    • H1c - Can be grown outside in the summer (5 - 10)
    • H2 - Tolerant of low temperatures, but not surviving being frozen (1 to 5)
    • H3 - Hardy in coastal and relatively mild parts of the UK (-5 to 1)
    • H4 - Hardy through most of the UK (-10 to -5)
    • H5 - Hardy in most places throughout the UK even in severe winters (-15 to -10)
    • H6 - Hardy in all of UK and northern Europe (-20 to -15)
    • H7 - Hardy in the severest European continental climates (< -20)

    H5

Colour

Sunlight

  • Full Sun

  • Aspect East-facing or South-facing or West-facing

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Chalk

  • Sand

    Sand

  • Loam

    Loam

  • MoistureWell-drained

  • SoilChalk, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1-1.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grows well in poor but well-drained soils in full sun

Propagation Propagate by softwood cuttings in late spring or semi-ripe cuttings in summer

Suggested planting locations and garden types Drought Resistant Flower borders and beds Mediterranean Climate Plants Cottage & Informal Garden City & Courtyard Gardens Gravel Garden

How to care

Pruning Pruning group 6

Pests Generally pest free

Diseases Generally disease free

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